UDP scarer.
So in our previous lessons, we discussed the UDP scan.
Most of the services that are popular in service systems run over TCP protocol, however.
UDP services are also widely used.
So DNS support 53, S&P PORC 161 and 162, and DHC, CP, or 67 and 68 are the most commonly used services.
UDP scanning is generally slower and it's more difficult than TCP scanning.
So for this reason, some security controllers kind of ignore these ports.
Extensible UDP services are common.
Therefore, this is an error because attackers do not ignore the entire protocol.
So in order to scan UDP with an map, we will need to add the as you parameter to the map command.
And it can be combined with a Tsipi scan type, just as the skin scan as as to control both protocols
using the same scan sound good?
A UDP scan works by sending a UDP packet to each targeted port.
And for most sports, this packet will be empty.
That means no load, but a protocol specific data payload will be sent for several of the more common
sports.
Now, four different situations can occur when we scan UDP with a map.
And these will be open status and so on and maps and UDP packet to the target system, if the UDP response
is sent from the destination system, that means that the destination port is open.
And a closed status, so unmap sends a UDP packet to the target system, and if the ICMP board from
the destination system sends an unreachable error response, that just means that the destination port
is closed.
An operation cannot be performed.
Filtered status.
And Map sends a UDP packet to the target system.
And if the ICMP sends unreachable areas from the target system, the destination port is filtered.
So the port is open, but it cannot be operated.
It's likely that security software is being audited by it.
Open filtered condition.
And sends a UDP packet to the target system, and if there's no response from the target system for
a certain period and MAP accepts eSport as open filtered.
That just means you cannot decide whether the port is open or closed, but still in operation cannot
be performed.
So now let's do a simple UDP scan.
Here's the example, we'll do a UDP top 10 port scan on the Métis voidable server we install.
So we open a virtual box, open, carry Linux, open voidable and log in and call Linux VM.
And open up terminal and right this command and map and zero to two to four as you top or 10 reason
as V and press enter.
And there are your scan results.
So as you can see, the time is too long for the TCP scan.
And Map UDP, scan the top 10 ports and listed the results.